How much life insurance? Common ways people think about it

Thinking it through · 5 min read

"How much coverage do I need?" is the question that stalls most people. There's no formula that spits out a personal answer — but there are a few frameworks people commonly use to think the problem through. They produce different numbers, and that's the point: each one illuminates the question from a different angle. This is general information to help you think, not a recommendation for any specific amount.

The DIME framework

DIME is a mnemonic for the four big categories of financial obligation many families consider:

• D — Debt: everything you owe besides the mortgage — car loans, credit cards, lines of credit, student loans.
• I — Income: the income your household would lose, multiplied by the number of years your family would need support. This is usually the biggest and hardest part to estimate.
• M — Mortgage: the remaining balance, so the family home isn't at risk.
• E — Education: anticipated costs of children's education, if that's a priority for your family.

Add those up and you get a rough sense of the financial hole your death would leave. Some people then subtract what they already have — savings, investments, existing insurance, any survivor income — to arrive at a coverage gap. The result is a starting point for conversation, not a verdict.

The income-multiple heuristic

You'll often see rules of thumb suggesting coverage of roughly 10 to 15 times your annual income. These heuristics are popular because they're simple — multiply one number and you're done. Their weakness is the same as their strength: they ignore your actual debts, your partner's income, how many years of support your family needs, and everything else that makes your situation yours.

Treat income multiples as a quick sanity check, not an answer. If a careful DIME-style estimate lands at 8 times your income and the heuristic says 12, the interesting question is why they differ — that gap usually reveals an assumption worth examining.

Needs-based thinking

The most grounded approach is also the most work: list what the money actually has to do, year by year. A few questions that help:

• How many years until the kids are independent, and what will those years cost?
• Would your partner need to keep working, change jobs, or could they take time off?
• What debts would need to disappear for the household budget to work on one income?
• Are there costs people forget — childcare that a stay-at-home parent currently provides for free, for example? Replacing unpaid labour is a real expense.
• What resources already exist: savings, investments, workplace insurance, government survivor benefits?

This approach tends to produce the most defensible number, because every line of it is something you chose deliberately rather than something a formula assumed.

The coverage amount question has a quieter sibling: how long should the coverage last? A policy that covers the years your family depends on your income — until the kids are grown, until the mortgage is paid — is the shape most term policies are designed for.

Common mistakes in the estimating

• Counting only the mortgage. The mortgage is the biggest single number, so it anchors people's thinking — but income replacement over many years is usually the larger need.
• Forgetting the unpaid work. A stay-at-home parent's death doesn't end a paycheque, but it creates enormous costs: childcare, housekeeping, the logistics of a grieving household running on one adult. Coverage isn't only for earners.
• Ignoring what's already there. Many employers provide some life insurance — often one or two times salary. It counts, but remember it usually ends when the job ends, so most people don't treat it as their whole plan.
• Setting it once and forgetting it. The right amount at 30 with a newborn is rarely the right amount at 45 with teenagers and a half-paid mortgage. See our guide on life events that should trigger a policy review.